semilunar valve

sem·i·lu·nar valve

S s

Definitions of semilunar valve words

noun semilunar valve either of two valves, one in the aorta and one in the pulmonary artery, consisting of a set of three crescent-shaped flaps of tissue and serving to prevent blood from flowing back into the heart after contraction. 1
noun semilunar valve either of two crescent-shaped valves, one in the aorta and one in the pulmonary artery, that prevent regurgitation of blood into the heart 0
noun semilunar valve either of two crescent-shaped heart valves, one, a pulmonary valve, at the junction of the right ventricle and pulmonary artery, the other, an aortic valve, at the junction of the left ventricle and aorta, which keep blood from flowing back into the ventricles 0

before 1710

One of the 50% oldest English words

First recorded in 1710-20

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 3% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

This diagram is provided by Google Ngram Viewer

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